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Stockholders' Equity and Noncontrolling Interest - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
1 Months Ended | 12 Months Ended | 1 Months Ended | 0 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2011
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Nov. 30, 2003
Series A Preferred Stock
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Mar. 31, 2013
Series A Cumulative Preferred Stock
|
Mar. 31, 2008
Series B Preferred Stock
|
Mar. 31, 2008
Series B Preferred Stock
Minimum
|
Feb. 12, 2013
Series C Cumulative Preferred Stock
|
Feb. 12, 2013
Series C Cumulative Preferred Stock
Minimum
|
Feb. 12, 2013
Series C Cumulative Preferred Stock
Maximum
|
|
| Class of Stock [Line Items] | |||||||||||
| Income attributable to noncontrolling interests | $ 4.0 | $ 6.4 | $ 3.6 | ||||||||
| Number of depositary shares sold | 4,000,000 | 3,173,115 | 5,600,000 | ||||||||
| Depository shares to cumulative redeemable preferred stock ratio | 0.01 | 0.01 | 0.01 | ||||||||
| Dividend rate on preferred stock | 8.00% | 9.00% | |||||||||
| Depositary shares, redeemable price (in usd per share) | $ 25.00 | $ 25.00 | |||||||||
| Annual dividend on depositary shares | $ 2.00 | $ 2.25 | $ 1.71875 | ||||||||
| Cumulative redeemable preferred stock liquidation preference | $ 25.00 | $ 25.00 | $ 25.00 | ||||||||
| Percentage of redeemable preferred stock | 60.00% | 6.875% | |||||||||
| Depository shares redemption date | Mar. 15, 2013 | Feb. 12, 2018 | |||||||||
| Dividends payment date | Apr. 15, 2013 | ||||||||||
| Dividends record date | Feb. 12, 2013 | Mar. 31, 2013 | |||||||||
| Issuance of common stock related to acquisitions | 186,968 | 186,968 | |||||||||
| Common stock, par value (in usd per share) | $ 0.01 | $ 0.01 | $ 0.01 | ||||||||
| Limited partners unit issued (in shares) | 1,497,814 | 1,497,814 | |||||||||
| Limited partners capital amount | $ 55.8 | ||||||||||